When sergi.io was a Game Boy
For a while, I turned my website into a Game Boy. A small experiment with animations, buttons, and vibecoding with GPT 5.6 Terra / Sol, built out of curiosity and for fun.
4 min readIDEAS, EXPERIMENTS & DISCOVERIES
The blog.
What I learn by building. Engineering, AI, games, and the paths that connect them.
10 ARTICLES10 articles
Minority: controlling my Mac with hand gestures
A small native macOS app that turns your own hand gestures into keyboard shortcuts, text, and other actions, with recognition running locally.
4 min read
You already pay for the models: connect your agents without another API bill
A practical guide to exposing the model allowance included with ChatGPT, Claude, and other supported accounts through 1 local API, followed by a secure Docker setup.
10 min read
RAG, GraphRAG, or something else: choosing without overbuilding
RAG does not always need a graph, and not every question needs RAG. A practical guide to choosing based on the data, the questions, and the cost we can afford.
12 min read
A better way to catch up: using the last30days skill
An agent skill that looks beyond the usual search results and turns scattered recent signals into a useful research brief.
3 min read
Small models in the browser: sentiment analysis without a server
A practical experiment in running a compact text classifier locally in the browser to label a sentence as positive, neutral, or negative.
6 min read
SIONexus and SIOBot: a crypto trading experiment
A holiday project that grew into a real-time market-data aggregator and trading bot - and why I have decided to stop trading it.
5 min read
Godot Card FX Lab: a weekend shader experiment with AI
A small Godot lab for exploring visual card and booster-pack effects, built out of curiosity using AI.
3 min read
Unobserved: a side project to experiment with game development
I have always been fascinated by game development. Unobserved is my way of exploring it without turning it into a profession.
6 min read
Hello world (v2)
New blog. From MSX machines and dial-up modems to fintech and AI: the path from wanting to be a hacker to building products and teams.
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